331312122213 has 16 divisors (see below), whose sum is σ = 443675620800. Its totient is φ = 219912738560.

The previous prime is 331312122181. The next prime is 331312122227. The reversal of 331312122213 is 312221213133.

It is a cyclic number.

It is not a de Polignac number, because 331312122213 - 2⁵ = 331312122181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331312122013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1137133 + ... + 1398461.

It is an arithmetic number, because the mean of its divisors is an integer number (27729726300).

Almost surely, 2^331312122213 is an apocalyptic number.

It is an amenable number.

331312122213 is a deficient number, since it is larger than the sum of its proper divisors (112363498587).

331312122213 is a wasteful number, since it uses less digits than its factorization.

331312122213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263172.

The product of its digits is 1296, while the sum is 24.

Adding to 331312122213 its reverse (312221213133), we get a palindrome (643533335346).

The spelling of 331312122213 in words is "three hundred thirty-one billion, three hundred twelve million, one hundred twenty-two thousand, two hundred thirteen".